SI88621EC-ASR

Overview

The SI88621EC-ASR is an automotive-grade digital isolator from Skyworks Solutions, featuring two channels with integrated DC-DC converters. It provides 3750 Vrms isolation and supports data rates up to 100 Mb/s. The device operates within a supply voltage range of 3 V to 5.5 V and exhibits a propagation delay of 18 ns. Designed for harsh environments, it functions between -40°C and +125°C. Packaged in a 20-SOIC reel, it meets AEC-Q100 standards for reliability.

Feature Summary

• Integrates isolated power supply via on-chip DC-DC converter
• Provides high common-mode transient immunity for noise rejection
• Automotive qualification ensures long-term reliability

Applications

• Automotive battery management systems
• On-board charging infrastructure
• Electric vehicle motor control units

Procurement Notes

Verify the ASR suffix confirms the reel packaging format required for automated assembly lines. Confirm that the specific revision level matches your design requirements. Ensure the automotive grade designation aligns with your system's safety integrity targets before finalizing procurement orders.

Selection Notes

Select this component when an integrated isolated power source is necessary to simplify board layout. It is suitable for applications requiring robust galvanic isolation in electric vehicles. Consider the 20-pin SOIC footprint for compatibility with existing thermal and mechanical constraints.

Part Context

This part belongs to the Si88621 family of automotive digital isolators. It complements other variants like the SI88621BC-IS by offering reel packaging instead of tubes. The series focuses on providing integrated power solutions for high-voltage automotive interfaces.

Replacement Considerations

The SI88621EC-AS is a tube-packaged equivalent of this reel-based component. Verify pinout and electrical specifications remain identical before substitution.